[pkg-go] Bug#1140111: certspotter: please do "rm -rf /var/cache/certspotter" on purge

[Alexandre Detiste]

Package: certspotter
Version: 0.18.0-1
Severity: normal

Dear Maintainer,

I noticed while browsing Debian Code Search that
this package creates /var/cache/certspotter"  with debian/dirs.

This makes it piuparts compliant;
because piuparts does not actualy run the packages;
but I guess that after some real world usage of
this package there would be some files in this directory.

Please ensure that this directory is cleansed on purge.

This can be handled by a full blow  .postrm script
or with a one-line debian/purge file
& a dependecy on dh-sequence-cruft.

Greetings

Alexandre